Pei-Yu Lin¹, Chih-Ping Lee¹, Cheng-Shiuan Lee^2,3, Tsai-Luen Yu⁴, Liang-Saw Wen¹, Kuo-Tung Jiann⁵ and Chuan-Chou Shen⁶, (1)National Taiwan University, Institute of Oceanography, Taipei, Taiwan, (2)National Taiwan University, Taipei City, Taiwan, (3)Stony Brook University, Stony Brook, United States, (4)National Taiwan University, Research Center for Future Earth, Taipei, Taiwan, (5)National Sun Yat-sen Univ., Kaohsiung, Taiwan, (6)National Taiwan University, High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Taipei, Taiwan